Stamping device



April 21, 1931.

R. M, DUGDALE 1,801,595

STAMPING DEVICE Filed-Feb. 14, 1950 ,l ZO

o j@ 2 /OL i5 l f j@ 276,511/ f4 BOSTON/Wiss,

/5- l' l 1# 2 fr* z Patented pr. 21, 1931 UNIT-ED sTATEs PATENT OFFICE RICHARD M. DUGDALE, OF DEDHAM, MASSACHUSETTS, ASSIGNOR TO FARRINGTON I MANUFACTURING COMPANY, vOF BOSTON, MASSACHUSETTS, A CORPORATION 02U MASSACHUSETTS STAMPING DEVICE Application led February 14, 1930. Serial 110.428.359.

This invention relates to stamping devices and is particularly adapted for use in stamping devices of the type described and claimed in my copending application Serlal N o.

404,290, led November 2,.- 1929. y Such stamping devices are often used to prlnt customers names and addresses on sales slips or books from small sheet-metal typographical plates or tokens adapted to becarried by individual customers. These plates preferably comprise a single sheet of metal having a struck-up type-bearing central portion surrounded by a continuous depending fiange. Due to slight inaccuracies in the manufacture of these plates, the various printing plates presented toa given stamping device may varyconsiderably from a predetermined standard. For example, all plates may not have their central type-bearing portions struck up equally from end to end, or from side to side, and the depending flange on one side or one end of a given plate may be longer than on other plates or o n the opposite end or side of the same plate. Furthermore, due to inaccuracies in forming raised printing characters on the central indiciabearing portions of the plates, one or more characters or lines of characters may extend slightlyhigher 'than the remaining characters.

My invention ainsto enable printing devices to ,use such printing plates and produce even, easily legible, impressions therefrom, and more particularly to provide ladevice for printing names and addresses on sales slips applicable for use in department stores and the like and capable'of improved operation with the somewhat imperfect customercarried tokens likely to be encountered from time to time in 'this use.

Other advantages and structural improvements will be apparent from the explanation in thisA specification and its accompanying drawing .of a specific illustrative embodiment of my invention. l

According to my' invention; a movable pressure memberl is employed, and the typographical plate isv retained in.position to be reacted upon 'by the pressure member by 50 means ofa plate support capable'of tilting tion will be explained by reference to one specific embodiment wherein it is utilized in a device of the type claimed in my copending application referred to above.

In the drawings:

Fig. 1 is a side elevation of a sales slip orbook stamping device, with its side cover removed;

Fig. 2 is a sectionon the line 2-2 of Fig. l on a reduced scale; p

Fig. 3 is a plan of a typographical plate in the form of a token adapted to be carried by a customer;

Fig. 4 is a section on the line 4 4 of Fig. 2 on the same scale as Fig. 1; and

Fig. 5 is a fragmentary section on the line 5--5 of Fig. 1 on an enlarged scale and showing the operation of my improved plate supporting mechanism and the cooperating pressure instrumentality, in conjunction with a typographical plate exhibiting one kind of imperfection accommodated satisfactorily by the improved device.

. The stamping deviceillustrated is provided with a plate-like member 11, which I shall refer to as the backing member, since it serves to oppose the pressure of the stamping operation and provides a firm backing for the typographical plate and the sheet or sheets to be printed. This backing member is supported by means of a block 12 above a base member 13 at a suicient height to permit the introduction of a sales book therebetween, with one or more-upper leaves of the sales book separated from the remainder of the book and retained above the back member.

A casing 14, containing the pressure roller 15, and an inked ribbon 16 together with suitable ribbon advancing mechanism, is pivoted at 17 to the backing member, to give als access to the upper Aside ofthe backing member for the insertion of the typographical late andthe sheet or sheets of the book to e stamped. An operating handle 20, associated with the casing serves to depress a vertical plunger member 21 carrying a cam 22 at its lower end. -This cam22 reacts upon a follower 23 to swing a bifurcated bracket 24 to the left in Fig. 1, an'd thereby move the pressure roller 15 across the casing and over the inked-ribbon 16. l

Referring to Fig. 3, the typographical plate 31 employed is preferably of'sheet metal, having a struck-up central portion 32 upon which are formed raised indicia 33, and having an outer depending flange 34 surrounding the central recess of the lower side.

The backing member 11 is recessed at 37, (Figs. 2, 4 and 5) to receive the depending flange 34 of the typographical plate. Wlthin the recess 37 ofthe backing member and extending above the immediately adjacent recessed portion thereof, a floating plate support 39 is provided, of a size suitable to eX- tend within the recess of the lower surface of a typographical plate and contact with and support the plate. In order to permit the plate support to tilt to accommodate' ir'- regularities and imperfections in the typo-A graphical plates, I provide a resilient connection between the plate support and the backing member 11. Two pins, preferably comprising rivets 40 and 41 are attached to the plate support 39 and depend from its under side and loosely fit within holes 44 and 45 in the backing member. 'Ihese pins are provided near their lower ends with stop members, preferably in the form of washers 46 and 47 respectively secured thereto bythe headed lower ends 48 and 49 of the pins and adapted to seat against the backing member to limit the upward movement ofl Vthe late support. The plate support 39 is yadtion, with the washers 46 and 47 seated against the backing memberhby means of a spring 50, retained byy a screw 51 on the lower side of the backing member, and hav- .ing its opposite ends bearing against the lower ends of the pins 40 and 41. Inthis position, the plate support lies, as shown in Fig. 4, above the recessed surface of theY backing member. A typographical plate retained by the plate support rests with its central recessed part upon the plate support and with its depending flanges occupying the recessed portion of the backing member butnot normally touching the surface indicated at 37. In this way the typographical plate is capable of being depressed, against the yielding resistance afforded by the plate support and its spring 50, and also capable of being tilted in either or both dimensions, through movement of the pins 40 and 41 in mgly retained in its uppermost posi-l their respective holes. Thus the plate support may tilt to permit the upper surfaces of the type characters of the plate to be moved by the pressure roller through a plane approximately parallel to the plane through which pressure is applied by the pressure roller, i. e. the lower plane defined by the roller 15 as it moves across the casing. This permits the effect of the pressure roller to be equalized over the various portions of the typographical plate, with a resulting evenness of impression by the various spaced type characters on the plate. Fig. 5, which illustrates on a somewhat exaggerated scale this action of the plate support, shows the type characters 60 (which may constitute one of a line of letters) at the right-hand side of the typographical plate to be somewhat higher than the spaced type characters 61 and 62 at its left. Inthis figure the plate support is shown as somewhat tilted to one side by the roller 15, and against the action of the spring 50, to permit each of the type characters 60, 61 and 62, normally of unequal height, to lie in its top face in approximate alignment with the roller 15.

M In like manner the opposite ends of the plate holder may be tilted to accommodate unevenness in height of the type characters from end to end of the plate. Furthermore, slight irregularities in height of the depending fiange 34 of the plate, or differences in height between the flanges of various plates used, will not cause variations or unevenness in stamping, since the recessed central part of the printing plate rests upon the plate holder' and the depending flanges do not ordinarily strike the recessed surface 37 of the backing member.

A construction such as the illustrated con struction, where a relatively fiat spring 50 lying closeuto the underside of the backing member 11 is employe-d is deemed desirable, since the space between the backing member 11 and the base 13 is obstructed little if any, and the placing of sales books in this space is not interfered with.

c 4In operating the device, the casing 14 is swung to the right in Fig. 1, and the upper surface of the backing member 11 thus rendered accessible. A typographical plate 31 the sheet or'sheets resting upon the typoi graphical plate. The tilting action ofthe plate holder, explained above, materially improves the evenness of printing.

The means herein disclosed for positioning the printing plate against lateral or edgewise movement relatively to the holder, whether or not the holder has a springpressed platform as herein claimed, is claimed in m copending application Serial No. 462364,/ led June 21, 1930.

I claim:

1. A stamping device comprising a relatively ixed backing member, a plate support mounted on said backing member for tilting with respect thereto in at least one dimension, said plate support projecting above the immediately adjacent portions of the backing member to receive a drecessed typographical plate and retain the plate in printing position, a pressure roller movable over a typographical plate thus supported,

- and a resilient member reacting upon the 'plate support yieldingly to resist movement of the plate support and a kretained typographical plate by the pressure roller.

2. A stamping device comprising a relatively xed backing member, a plate support mounted on said backing member for tilting with respect thereto in two dimensions, said plate support projecting above the immediately. adjacent portions of the backing member to receive a recessed typographical plate and retain the plate in prmting position, a pressure roller movable over a typographical plate thus supported, and a resilient member reacting upon the plate support yieldingly to resist movement by the pressure roller of the plate support and a retained typographical plate.

3. A stamping device comprising a relatively iiXed backing member, a floating plate support associated with said backing member for supporting a-typographical plate in printing position, a pin depending from the plate support and lloosely disposed in a hole in the backing member, a stop on the pin normally seating on said jbacking member, a resilient member forcing said stop against the backing member and yieldable to permit i y tilting of said plate support, and a pressure 5o member for cooperating with a typographical plate disposed on said plate support to make an impression on an interposed sheet.

4. A stamping device adapted to utilize .recessed typographical plates, comprising-a base, a backing member supported abo-ve the base and spaced therefrom to receive a sales booky therebetween, a casing pivotally mount- Y ed on thebacking member, a pressure roller movable across the lower part of the casing, an ink ribbon below the pressure roller,

a plate support in a recess in the upper surface of the backing-member, said plate support extending above the immediately adjacent portion of the recess and leaving va- @5 cant a surrounding space within the recess to receive the depending ange of a typogrraphical plate, a pair of pins dependmg om the plate holder and extending loosely within larger holes in the backing member, stops on the pins limiting upward movement of the plate holder, and a spring lying closely adjacent the under surface of the backing member and bearing upwardly upon the said two pins.

5.I A stamping device comprising a backing member, a plate support associated with said backing member and adapted to hold a typographical plate in printing position, a pressure roller adapted to move over a typographical plate on said plate support from end to end progressively to apply pressure to an interposed sheet, and resilient means reacting upon said plate holder at opposite ends for resisting movement thereof by the pressure roller.

6. A stamping device comprising a backing member, a pressure roller-movable over said backing member, a universally tilting plate support associated with said backing member and projecting above the immedi-l ately adjacent portions thereof to tit within a recess of a typographical plate and retain the plate in position to be reacted upon by F the roller, and means for yieldingly resisting tilting of the, plate holder.

7. A stamping device for printing from detachable plates of sheet material of the kind having thereon customers names and addresses or like indicia in raised type characters which may be of slightly varying effective heights, comprising a backing member, a plate support ,associated with the backing member and adapted to support a plate of' the kind described, a pressure member movable with respect to a plate .thus supported to apply pressure thereto, and a resilient connection between the plate support and said backing member permitting theQ plate support to be tilted in at least one dimension by the pressure member, thereby 4 to accommodate irregularities in the height of the typographical plate.

8. A stamping device for printingl from detachable plates of sheet material of the kind having thereon customers names and addresses or like indicia in raised type characters which may be of slightly varying effective heights, comprising a backing member, a plate support associated with the backing member and adapted to support a plate of the kind described, a pressure member movable with respect vto a plate thus supported to apply pressure thereto, and a resilient connection between the plate support and said backing member permitting the plate support to be tilted in two dimensions by the pressure member, thereby to accommodate irregularities in the height of the typographical plate.

from a. typographical plate of sheet material having a raised central portion which is provided with raised type characters, the device including a backin member, a plate support associated with t e backing member and projecting from the immediately adjacent portions thereof to permit the plate support to fit Within a recess in the plate opposite to the raised portion thereof, a pressure member movable with respect to the plate support to apply printing pressure to the typographical plate, and a resilient connection betweensaid plate support and said backing member permitting the plate support to be tilted in at least one dimension by the pressure member, thereby to accommodate irregularities in height of the typographical plate.

10. A stampin device adapted to print from a typograp ical plate of sheet material having a raised central portion which is provided with raised type characters, the device including a backing member, a plate support associated with the backing member and projecting from the immediately adjacent portions thereof to permit the plate support to fit Within a recess in the plate opposite to the raised portion thereof, a pressure member movable With respect to the plate support to apply printing pressure to the typographical plate, and a resilient connection between said plate support and said backing member permitting the plate support to be tilted in two dimensions by the pressure member, thereby to accommodate irregularities in height of the typographical plate.

11. A stamping device comprising a backing member, a tilting plate support associated with said backing member and adapted to hold a typographical plate in printing position, means acting to apply rolling pressure progressively across a sheet on the plate, and resilient means reacting upon the plate support for resisting tilting of the printing plate by said rolling pressure means.

Signed by meat Boston, Massachusetts,

this 10th day of February, 1930.

RICHARD M. DUGDALE. 

